Stable under room temperature and pressure
Avoid to get contact with acid.
Sealed at room temperature, avoid exposing to sunlight, keep in dry and cool place.
Under 800 degree celsius and in vacuum atmosphere, nickel powder would react with WO3 to obtain volatile W3O8, NiWO4 and NiW5O16.
1、Acute toxicity：primary irritant effect：
On skin: irritate skin and mucosa;
On the eyes: Irritation but no forgone sensitization effect.
Do not make contact with groundwater or sewage system or pour into environment without government's permission.